How do you account for an existing roof greater than 3 years old that will remain?  Can the aged values in the manufacturer's literature be used in the calculations?

Good morning.

Good morning, I'd like to know if anyone can share there best approach to modeling a curtain wall.

Hi,

Background:

For the Diverse Uses Option 2 in this credit can a project claim a diverse use by summing up the total FTE's to be >100 for several different commercial offices within a 1/2 mile radius?

Hi, I understand all the previous discussion UPSs but our situation is just a tad different, The project in question is intensely tech related, and the UPS needed as backup is a 3 phase, 50,000 kV

I am wondering if anyone knows if a cleanroom return chase would be counted in the conditioned floor area for determining the primary system type for ASHRAE 90.1.

How have others filled in the ASHRAE Lighting Compliance Documentation form, specifically the "Space-by-Space Method" table?

Hello, my project is going for Net Zero energy consumption and we were planning on going for the EAc6 - Green Power credits.

I understand the energy model is based on ASHRAE 90.1, but is the LEED project building required to follow ASHRAE 90.1 as the energy code?  Here in NYC, we are allowed to follow either ASHRAE